NickelPlate
Senior member
- Nov 9, 2006
- 652
- 13
- 81
Keysplayr
Elite Member
- Jan 16, 2003
- 21,211
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I don't know how this thread morphed into an SLI bashing thread. If you noticed, there are no SLI bridges on that setup because:
"Another interesting note is that this system doesn't need SLI, their application uses the NVIDIA CUDA programming model which makes all eight GPUs work in parallel. The researchers say they don't need SLI during a reconstruction as every graphics card communicates directly with the CPU, no inter-GPU communication is needed."
Tada!!
"Another interesting note is that this system doesn't need SLI, their application uses the NVIDIA CUDA programming model which makes all eight GPUs work in parallel. The researchers say they don't need SLI during a reconstruction as every graphics card communicates directly with the CPU, no inter-GPU communication is needed."
Tada!!
Originally posted by: SteelSix
A room full of scientists and one chesty chick
[Dreams of being a scientist...]
"Dude, run some calculations with Fastra while I perform required experiments on, er, with her."
"We'll be in the lab..."
LOL ! Need another picture ? http://visielab.ua.ac.be/staff/gevgo/
Greetz !
FASTRA chick
I doubt they are getting 100% cuz those PCIe lanes are x8 when there are 4 cards. Benchmarks showed that for ati cards x8 vs x16 made about a 10-15% performance decrease.
Originally posted by: FASTRAchick
Originally posted by: SteelSix
A room full of scientists and one chesty chick
[Dreams of being a scientist...]
"Dude, run some calculations with Fastra while I perform required experiments on, er, with her."
"We'll be in the lab..."
LOL ! Need another picture ? http://visielab.ua.ac.be/staff/gevgo/
Greetz !
FASTRA chick
... and suddenly all the forum's nerds desperately tried to hide behind their glasses...
theeedude
Lifer
- Feb 5, 2006
- 35,787
- 6,197
- 126
Originally posted by: FASTRAchick
Originally posted by: SteelSix
A room full of scientists and one chesty chick
[Dreams of being a scientist...]
"Dude, run some calculations with Fastra while I perform required experiments on, er, with her."
"We'll be in the lab..."
LOL ! Need another picture ? http://visielab.ua.ac.be/staff/gevgo/
Greetz !
FASTRA chick
Thank you for registering, the IQ of this forum just doubled.
It depends on how they designed their algorithm and how much bandwidth it requires. You have to handle multi-GPU stuff yourself in CUDA, the API pretty much just lets you enumerate the GPUs and pick which adapter to run a given kernel on.
Hauk
Platinum Member
- Nov 22, 2001
- 2,806
- 0
- 0
Originally posted by: FASTRAchick
Originally posted by: SteelSix
A room full of scientists and one chesty chick
[Dreams of being a scientist...]
"Dude, run some calculations with Fastra while I perform required experiments on, er, with her."
"We'll be in the lab..."
LOL ! Need another picture ? http://visielab.ua.ac.be/staff/gevgo/
Greetz !
FASTRA chick
Welcome to the forums!
Didn't expect my post to reach all the way around to your little corner of the world, but am happy you're here. :heart:
Now that you are, you have to stay. So in that pic, your shirt looks like it says Calfornia or something??
nitromullet
Diamond Member
- Jan 7, 2004
- 9,031
- 36
- 91
Full list of components here:
http://fastra.ua.ac.be/en/specs.html
A few pics of the build (and the guys who built it):
http://fastra.ua.ac.be/en/images.html
nitromullet
Diamond Member
- Jan 7, 2004
- 9,031
- 36
- 91
Yeah, I can't imagine that those cards are running very cool. The housing on the HSF on the GX2 is actually metal, so it transfers heat and gets very hot to the touch. I'm sure they radiate some serious heat when stacked 4 deep, plus it seems like the fans would have trouble getting fresh air.
I know that one of the attractive qualities of the FASTRA is cost, but I wonder if by using consumer grade hardware they might have compromised the longevity of the system. That being said, I'm sure this wouldn't be something that couldn't be rectified by increasing the price about $1000 and going with modified cooling.
The thing I dislike about SLI, not to slag anyone who uses it, is just that it seems an extreme example of the way gfx cards power consumption, heat production, and noise issues are getting seriously out of hand. SLI is surely about gaining more gfx power by sheer brute force with pretty directly proportional increases in all those 3 things. Its saying 'all I care about is sheer pixel power, even if I single-handedly bring about global warming or give myself tinnitus with the fan noise' 
.
Personally I think my single card system has long passed the point where the noise and power requirements are acceptable to me. If it goes on like this I'll probably lose interest in PCs.
Did anyone see the movie 'Sunshine'? Surely it contains the only dramatic death sequence directly related to extreme CPU cooling ever filmed. The way things are going some gamer will meet his demise that way before too long.
. Personally I think my single card system has long passed the point where the noise and power requirements are acceptable to me. If it goes on like this I'll probably lose interest in PCs.
Did anyone see the movie 'Sunshine'? Surely it contains the only dramatic death sequence directly related to extreme CPU cooling ever filmed. The way things are going some gamer will meet his demise that way before too long.
Originally posted by: SteelSix
Originally posted by: FASTRAchick
Originally posted by: SteelSix
A room full of scientists and one chesty chick
[Dreams of being a scientist...]
"Dude, run some calculations with Fastra while I perform required experiments on, er, with her."
"We'll be in the lab..."
LOL ! Need another picture ? http://visielab.ua.ac.be/staff/gevgo/
Greetz !
FASTRA chick
Welcome to the forums!
Didn't expect my post to reach all the way around to your little corner of the world, but am happy you're here. :heart:
Now that you are, you have to stay. So in that pic, your shirt looks like it says Calfornia or something??
For recording the movie, I picked my most "world minded" shirt
It says California Santa Monica Boulevard, a sweet memory to a great holiday in california and neighbouring countries last year.
about the heat : The FASTRA can keep temperatures reasonable for long calculation times as long as the side panel is open. Until now we have no extra air flowing on/around the fastra. We are still looking for a better solution, preferably air cooled. Probably we will order a side panel with a hole in it so that we're able to add an extra fan.
It's true that it can get pretty warm at the other side of the desk, but our Taiwanese colleague sitting there just loves it !
Greetz!
Hauk
Platinum Member
- Nov 22, 2001
- 2,806
- 0
- 0
Hey girl, yes what it needs is forced air blowing thru the crevices between the cards. A side panel fan solution would work well.
In this rig, 9800 GTX's benefited from direct side airflow. I'd strive to get a couple 120mm fans as close as possible to the cards. One could fashion a dual fan duct such as this one from the side panel.
Yep, love the California shirt. Glad you made it to the US & A..
In this rig, 9800 GTX's benefited from direct side airflow. I'd strive to get a couple 120mm fans as close as possible to the cards. One could fashion a dual fan duct such as this one from the side panel.
Yep, love the California shirt. Glad you made it to the US & A..
Interesting papers on that site. Do you know Professor I. Daubechies by any chance?
I wouldn't care about those things if it actually worked like a single card from the end user's point of view. The reason I'm staying away from multi GPU setups in the future is the various rendering and game-specific issues you get that don't appear on single cards, and often having to waste time experimenting with profile settings to get lesser known games working.
Of course, these things don't enter into the picture for GPGPU applications like this.
The Belgian Ingrid Daubechy, princeton university ? tomography, but mostly famous because of her wavelets ? She worked together with one of my promotors ;-)
bryanW1995
Lifer
- May 22, 2007
- 11,144
- 32
- 91
Originally posted by: senseamp
Originally posted by: FASTRAchick
Originally posted by: SteelSix
A room full of scientists and one chesty chick
[Dreams of being a scientist...]
"Dude, run some calculations with Fastra while I perform required experiments on, er, with her."
"We'll be in the lab..."
LOL ! Need another picture ? http://visielab.ua.ac.be/staff/gevgo/
Greetz !
FASTRA chick
Thank you for registering, the IQ of this forum just doubled.
did you mean "intelligent quotient" or "image quality"?
@fastrachick and scientific team: wouldn't a coolermaster stacker case provide the needed airflow? or maybe just take the fan bracket and mount the 4x120mm fans on the side panel...
Originally posted by: Aberforth
GPU User IQ
Single- Normal
SLI - Borderline Retard
Tri SLI- Severe Retardation
Quad SLI - neanderthalensis
More - under investigation
funniet stuff EVER....
but in terms of marketing strategy:
SLI = smart way to yield more profit
Yeah, same person. She's my thesis advisor. I figured you might know her since she is from Belgium and works in tomography among other things.
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